PROCEDURES AND APPLICATIONS FOR IMPROVEMENT OF BODIES AND OPERATIONS

摘要

PCT No. PCT/MC86/00003 Sec. 371 Date Aug. 13, 1987 Sec. 102(e) Date Aug. 13, 1987 PCT Filed Oct. 3, 1986 PCT Pub. No. WO87/02724 PCT Pub. Date May 7, 1987.A breakwater for attenuating the sea-swell effects of waves includes a bottom plate rigidly supporting and adapted to be immersed in a body of water. A generally upwardly extending solid front wall is formed at an upstream edge of the plate and an upper end of the front wall extends above the surface of the body of water. A generally upwardly extending rear wall is formed at a downstream edge of the bottom plate and has a plurality of regularly spaced orifices formed therein. A generally upwardly extending intermediate wall is formed between the front wall and the rear wall and also includes orifices, the front wall and the intermediate wall forming therebetween an energy dissipation basin. The front wall extends above the surface of the body of water so as to prevent the passage of a sea swell above the bottom plate as long as the amplitude of the swell is average. The water between the bottom plate and the bottom surface of the body of water behaves like an inert obstacle whereby at least a portion of an incident sea swell is reflected and any swell wave transmitted downstream is of reduced amplitude.